The drive from Perth, NY to Islip, NY covers 223.5 miles and takes about 4h 42m behind the wheel.
This route is realistic as a one-day drive if you keep your stops efficient.
The route leans on New York State Thruway, Southern State Parkway, NJ 17 for much of the mileage,
and the overall profile is mixed drive.
The longest uninterrupted segment is about 142.8 miles on New York State Thruway.
At current regular gas prices, budget about $36.79 one way before food or hotel costs.
Trip Pace
Same-day drive is realistic
A same-day return is possible, but it will make for a full day on the road.
Break Rhythm
1 planned break
Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
Midpoint
111.8 miles from Perth, NY
A natural place for your longest stop of the day
, about 2h 15m into the drive
.
Islip (pronounced "ICE-lip") is a town on Long Island in the state of New York. Located within Suffolk County, the Town of Islip includes the villages of Brightwaters, Islandia, Ocean Beach and Saltaire. It also includes numerous hamlets including Bay Shore and Sayville which are ferry terminals for Fire Island. Other prominent communities are Bayport, Brentwood, Central Islip, Hauppauge, Islip village (the town seat), and Ronkonkoma.
Top landmarks
•Bayport Aerodrome — airport in Suffolk County, New York, United States
•Connetquot River State Park Preserve — state park in New York
•Modesty — oyster-dredging sloop built in Long Island
Doable as a same-day drive at 4h 42m. Total distance: 223.5 miles.
Family Friendly
Moderate complexity with 1 natural rest stops along the way.
Solo Traveler
4h 42m drive, comfortable solo distance.
Scenic Drive
Mixed drive route profile.
Drive Character
The drive from Perth, NY to Islip, NY covers 223.5 miles and takes about 4h 42m, using a mix of highways and local roads.
Expect a mix of faster highway mileage and slower local approaches near the beginning or end.
There are about 50 navigation steps in the underlying route data, so the final approach matters more than the middle miles.
New York State Thruway is the longest continuous segment at about 142.8 miles.
How Hard Is This Drive?
This route mixes highway mileage with some local-road sections near the start or finish. This route has several spots where lane changes, forks, or exits need your full attention. The trickiest moment comes around 32.1 miles in near New York State Thruway.
Driving Effort10/10
High effort - long or complex enough to need steady focus all day
Balances navigation complexity with total wheel time.
This is a demanding drive. With 27 significant decision points across 223.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
Where does it get tricky?
The main spots that need attention: at 32.1 miles (New York State Thruway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 150.3 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 151.7 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here.
Critical Maneuvers
5 of 27 key points
These are the spots where you need to pay the most attention. Preview them before you drive.
8
32.1 mi into trip|~44m in|New York State Thruway
Keep slight right at fork onto New York State Thruway toward I 87 South: New York, Boston
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Toward I 87 South: New York, Boston
9
150.3 mi into trip|~3h in|NY 17
Keep slight right at fork onto NY 17 toward I 287 South, NJ 17 South: New Jersey
Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 15
Toward I 287 South, NJ 17 South: New Jersey
8
151.7 mi into trip|~3h 2m in|NJ 17
Keep slight left at fork onto NJ 17 toward NJ 17 South: Mahwah
Highway fork - watch signs carefully. Lane positioning matters here
Use the slight left / straight lanes.
Exit 66
Toward NJ 17 South: Mahwah
8
180.7 mi into trip|~3h 42m in|I 295 / Cross Bronx Expressway
Keep slight right at fork onto I 295 / Cross Bronx Expressway toward I 295 South: Throgs Neck Bridge
Highway fork - watch signs carefully. Lane positioning matters here
Use the straight / slight left lanes.
Exit 6B
Toward I 295 South: Throgs Neck Bridge
9
218.9 mi into trip|~4h 33m in
Take the exit toward Bay Shore Road South, Bay Shore
Exit ramp - move to the correct lane early. Lane positioning matters here. Multiple destination signs - pick the right one
Use the slight right lane.
Exit 41S
Toward Bay Shore Road South, Bay Shore
Towns Mentioned on Route Signs
Based on OSRM destination-sign hints, not a full list of every settlement the road passes.
Between Perth, NY and Islip, NY, road signs point toward Boston, Gsp South: Paterson, Fort Lee, New York, Cross Island Parkway South and Southern State Parkway East - among others.
Boston
32.1 mi in|~44m|via New York State Thruway
Gsp South: Paterson
165.8 mi in|~3h 20m
Fort Lee
165.8 mi in|~3h 20m
New York
165.8 mi in|~3h 20m
Cross Island Parkway South
192.2 mi in|~3h 58m
Southern State Parkway East
193.7 mi in|~4h 1m
Eastern Long Island
193.7 mi in|~4h 1m
Main Roads
Road
Distance
Duration
New York State Thruway
142.8 mi
2h 44m
Southern State Parkway
24.7 mi
31m
NJ 17
14.1 mi
18m
NJ 4
6.7 mi
9m
Cross Bronx Expressway
6.6 mi
8m
Clearview Expressway
5 mi
5m
State Highway 30
3.3 mi
5m
Throgs Neck Bridge
2 mi
3m
Longest stretch:
New York State Thruway
— 142.8 mi, about 2h 44m
Turn-by-Turn Driving Directions
Step-by-step road directions between Perth, NY and Islip, NY.
1
Start on this road
53 ft·9 sec·this road
2
Turn left onto CR 107
81 ft·5 sec·Perth-Johnstown Road
3
Turn right onto NY 30
2.4 mi·4 min·State Highway 30
Use the straight lane.
4
Continue on NY 30
2.0 mi·3 min·Perth Road
5
Continue on NY 30
1.2 mi·3 min·Market Street
6
Continue on NY 30; NY 67
0.1 mi·22 sec·Pearl Street
7
Continue on NY 30
381 ft·10 sec·East Main Street
8
Continue on NY 30
0.9 mi·1 min·State Highway 30
9
Turn left
398 ft·11 sec
10
Continue on this road
525 ft·14 sec·this road
11
Keep slight left at fork
0.7 mi·1 min
Toward I 90 East
12
Merge onto I 90
25 mi·28 min·New York State Thruway
13
Keep slight right at fork onto New York State Thruway
118 mi·2 hr 16 min·New York State Thruway
Toward I 87 South: New York, BostonUse the slight right lane.
14
Keep slight right at fork onto NY 17
0.9 mi·59 sec·NY 17
Exit 15Toward I 287 South, NJ 17 South: New JerseyUse the slight right lane.
15
Continue on I 287; NJ 17
0.5 mi·39 sec·I 287; NJ 17
16
Keep slight left at fork onto NJ 17
14 mi·18 min·NJ 17
Exit 66Toward NJ 17 South: MahwahUse the slight left / straight lanes.
17
Take the exit
0.1 mi·19 sec
Toward NJ 4, GSP South: Paterson, Fort Lee, New York
18
Keep slight left at fork
0.5 mi·1 min
Toward NJ 4 East: Fort Lee, New York
19
Merge onto NJ 4
0.3 mi·24 sec·NJ 4
Use the right lane.
20
Continue on NJ 4
6.4 mi·8 min·NJ 4
Use the straight / slight right lanes.
21
Take the exit
0.2 mi·18 sec
Toward I 95 North: George Washington BridgeUse the straight / slight left lanes.
22
Merge onto I 95 EXPR
0.7 mi·54 sec·I 95 EXPR
Use the straight / slight right lanes.
23
Keep slight left at fork onto I 95 EXPR
0.8 mi·1 min·I 95 EXPR
24
Continue on I 95; US 1; US 9
0.6 mi·1 min·George Washington Bridge (upper level)
Use the straight / slight right lanes.
25
Continue on I 95; US 1
0.7 mi·1 min·Trans-Manhattan Expressway
26
Continue on I 95; US 1
4.7 mi·6 min·Cross Bronx Expressway
Use the straight / slight right lanes.
27
Keep slight right at fork onto I 295
2.0 mi·2 min·Cross Bronx Expressway
Exit 6BToward I 295 South: Throgs Neck BridgeUse the straight / slight left lanes.
28
Merge onto I 295
0.6 mi·58 sec·Throgs Neck Expressway
29
Continue on I 295
2.0 mi·3 min·Throgs Neck Bridge
Use the straight / slight right lanes.
30
Continue on I 295
5.0 mi·5 min·Clearview Expressway
Use the straight / slight right lanes.
31
Continue on NY 24
0.7 mi·1 min·Hollis Court Boulevard
Use the straight lane.
32
At end of road, turn left onto NY 24
0.2 mi·35 sec·Jamaica Avenue
Use the left lane.
33
Turn right onto Hempstead Avenue
0.9 mi·2 min·Hempstead Avenue
34
Turn right onto 225th Street
228 ft·9 sec·225th Street
Use the right lane.
35
Take the ramp
0.2 mi·28 sec
Toward Cross Island Parkway South, Verrazano Bridge
36
Merge onto CI
1.3 mi·1 min·Cross Island Parkway
Use the straight / slight right lanes.
37
Take the exit
0.5 mi·1 min
Exit 25AToward Southern State Parkway East, Eastern Long IslandUse the slight left / straight lanes.
38
Merge onto SO
25 mi·31 min·Southern State Parkway
Use the straight / slight right lanes.
39
Keep slight left at fork onto SO
0.2 mi·16 sec·Southern State Parkway
Use the straight / slight right lanes.
40
Take the exit
0.2 mi·31 sec
Exit 41SToward Bay Shore Road South, Bay ShoreUse the slight right lane.
41
Turn straight onto CR 57
0.5 mi·1 min·Bay Shore Road
42
Continue on CR 57
0.3 mi·43 sec·Howells Road
43
Turn straight onto CR 57
341 ft·6 sec·Sunrise Highway
44
Keep slight right at fork onto CR 57
0.6 mi·1 min·Howells Road
Toward Howells Road SouthUse the right lane.
45
Continue on CR 57
0.2 mi·24 sec·Roosevelt Street
46
Continue on CR 57
0.7 mi·1 min·3rd Avenue
47
At end of road, turn left onto NY 27A
1.1 mi·1 min·East Main Street
48
Continue on Montauk Highway
0.2 mi·17 sec·Montauk Highway
49
Continue on NY 27A
0.8 mi·1 min·Main Street
50
Arrive at destination
NY 27A
Trip Plan
Morning Departure
An early start around 7-8 AM gets you there with plenty of daylight left.
Evening Departure
A late afternoon start means arriving after dark. Morning is better.
You can normally do this drive in one day.
Plan roughly 1 meaningful break for fuel, food, and rest.
The halfway point lands around 111.8 miles from Perth, NY, or about 2h 15m into the drive.
The longest continuous stretch on this route runs about 142.8 miles.
This is a comfortable same-day trip.
Departure
Before you leave
Start with fuel, water, and navigation already sorted so the first hour feels easy.
First stop
Around 49 miles or 1h 3m in
Use this first pause for coffee, a restroom break, and a quick traffic check ahead.
Halfway reset
Around 111.8 miles or 2h 15m in
This is the best place for your longest stop, a real meal, and a full fuel check.
Final approach
Final hour starts around 3h 45m
Traffic, exits, and arrival timing usually matter more near Islip, NY than in the middle of the route.
Before You Leave
+
Open the route before leaving Perth, NY so your first major turns are already loaded.
+
Leave with enough water and a charging cable within reach, not packed away.
+
Check your fuel range against the first long segment, especially if you are starting outside city service areas.
Day 1
Settle into the route from Perth, NY
This is one driving day of about 223.5 miles and 4h 42m.
Your first comfortable stop window is around 49 miles from Perth, NY.
This route can stay practical as a one-day drive if traffic stays reasonable.
Plan about 1 real break rather than only quick fuel stops.
The longest stretch is on New York State Thruway for about 142.8 miles.
Where to Stop
Rest stops, refuel points, and overnight suggestions along this route.
Halfway Point
Midpoint
About 111.8 mi from Perth, NY
· 2h 15m into the drive
Place data sourced from public business listings. Hours and availability may vary.
Fuel & Cost
Regular Gas
$36.79 one way
$73.58 round trip
$4.18/gal25.4 MPG avg78 kg CO2
Fuel Type
$/gal
One Way
Round Trip
midgrade
$4.52
$39.78
$79.56
premium
$4.92
$43.32
$86.64
diesel
$5.61
$49.35
$98.69
Estimated Tolls: $29.69
George Washington Bridge
$16.00
New York State Thruway
(142.8 mi)$7.14
Throgs Neck Bridge
$6.55
Toll estimates based on average 2024-2025 rates. EZ-Pass/SunPass discounts may lower the actual cost.
Estimated Trip Cost (one way, 1 person)
Fuel
$37
Tolls
$30
Meals
$25–$50
Total
$91–$116
Rough estimate based on US averages. Hotel $80–$140/night, meals $25–$50/day.
Estimated CO2 emission: 78.2 kg one way.
Prices: EIA weekly data, 2026-04-13.
Driving Electric?
About $23 in charging
· 0 stops
· 67% less CO2
Vehicle Type
kWh
Stops
DC Fast
Home Charge
Average EV
67.1
0
$23.47
$10.73
Efficient EV
55.9
0
$19.56
$8.94
EV Truck/SUV
89.4
1
$31.29
$14.30
Gas CO2
78 kg
EV CO2
26 kg (67% less)
Plan for 0 charging stops, roughly every 270 miles. Allow 25-40 minutes per stop at a DC fast charger.
DC fast charging avg $0.35/kWh. Home charging avg $0.16/kWh. US grid CO2: 0.39 kg/kWh.
Travel Intel
Current conditions at both ends of the drive.
Forecast as of Apr 18, 2026
Origin
Perth, NY
Afternoon
in Perth on Saturday
Local time
12:11 PM
EDT
Current temp
39°F
Unavailable
Live forecast
Destination
Islip, NY
Afternoon
in Islip on Saturday
Local time
12:11 PM
EDT
Current temp
50°F
Partly Cloudy
NE 3 mph0% chanceLive forecast
Wind Advisory
Wind Advisory issued April 18 at 2:37AM EDT until April 19 at 12:00AM EDT by NWS Burlington VT
57°F
Ramapo, NY
112 mi in
Seasonal Notes
Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.
Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.
Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.
Time zone
Same local time
Origin and destination are on the same clock, so arrival timing is easier to judge at a glance.
Temperature spread
11 degrees warmer at arrival
A meaningful temperature swing is a good cue to rethink layers, water, and how soon you want to arrive.
Road read
4h 42m on the road
An early start around 7-8 AM gets you there with plenty of daylight left.
Weather data from the National Weather Service. Conditions may change; check closer to your travel date.
Frequently Asked Questions
The drive from Perth, NY to Islip, NY covers 223.5 miles and takes about 4h 42m without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.
The main roads are New York State Thruway, Southern State Parkway, NJ 17. Expect a mix of highway and local road driving.
This is a comfortable same-day trip.
The midpoint is about 111.8 miles from Perth, NY. Look for rest areas, gas stations, or food options near the halfway mark.
At current regular gas prices, expect to spend about $36.79 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.
An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.
Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.
This is a demanding drive. With 27 significant decision points across 223.5 miles, you will need to stay alert - especially through interchange areas and urban stretches. Consider splitting it into segments if you are not comfortable with fast highway navigation.
The main spots that need attention: at 32.1 miles (New York State Thruway): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 150.3 miles (NY 17): Highway fork - watch signs carefully. Lane positioning matters here. Multiple destination signs - pick the right one; at 151.7 miles (NJ 17): Highway fork - watch signs carefully. Lane positioning matters here.
Between Perth, NY and Islip, NY, road signs point toward Boston, Gsp South: Paterson, Fort Lee, New York, Cross Island Parkway South and Southern State Parkway East - among others.
